README.md

MultiJSON

Lots of Ruby libraries utilize JSON parsing in some form, and everyone has
their favorite JSON library. In order to best support multiple JSON parsers and
libraries, multi_json is a general-purpose swappable JSON backend
library. You use it like so:

The engine setter takes either a symbol or a class (to allow for
custom JSON parsers) that responds to both .decode and
.encode at the class level.

MultiJSON tries to have intelligent defaulting. That is, if you have any of the
supported engines already loaded, it will utilize them before attempting to
load any. When loading, libraries are ordered by speed. First Yajl-Ruby, then
the JSON gem, then JSON pure. If no JSON library is available, MultiJSON falls
back to a bundled version of OkJson.

We use the GitHub issue
tracker to track bugs and
features. Before submitting a bug report or feature request, check to make sure
it hasn't already been submitted. You can indicate support for an existing
issuse by voting it up. When submitting a bug report, please include a
Gist that includes a stack trace and any details
that may be necessary to reproduce the bug, including your gem version, Ruby
version, and operating system. Ideally, a bug report should include a pull
request with failing specs.

If something doesn't work on one of these interpreters, it should be considered
a bug.

This library may inadvertently work (or seem to work) on other Ruby
implementations, however support will only be provided for the versions listed
above.

If you would like this library to support another Ruby version, you may
volunteer to be a maintainer. Being a maintainer entails making sure all tests
run and pass on that implementation. When something breaks on your
implementation, you will be personally responsible for providing patches in a
timely fashion. If critical issues for a particular implementation exist at the
time of a major release, support for that Ruby version may be dropped.